Method for making fur-covered brushes



Jan. 26, 1965 F. S. ADAMS METHOD FOR MAKING FUR-COVERED BRUSHES Filed Jan. 25, 1962 INVENTOR. FLOYD S. ADAMS United States Patent 3,167,356 METHOD FOR MAKING FUR-COVERED BRUSHES Floyd Silas Adams, Rochester, N.Y., assiguor to Crosby- Frisian Fur Company, Rochester, N.Y., a corporation of New York Filed Jan. 25, 1962, Ser. No. 168,640 2 Claims. (Cl. 300-21) This invention relates to a method for making a brush and more particularly to a method for making a rotary, fur-covered brush.

For certain purposes, as for instance in polishing metal, creation of static electricity by friction, etc., it is desirable to use a rotating fur-covered brush. Generally such brush is made by fitting a fur sleeve over a hollow core made of heavy cardboard or the like.

Heretofore, to make such a brush, an operator has had to first brush glue all over the outer peripheral surface of the core, and thereafter pull a fur sleeve onto the core by hand. Since ordinarily such a fur sleeve is made of at least two pieces of fur, and since it is undesirable to have any bulky seams on the outside (fur side) of the finished brush, the two pelts or pieces of fur usually are sewed together with the skin sides out so that the seams are on the skin sides rather than on the fur sides of the sleeve. Thereafter the sleeve has heretofore had to be turned inside out so that the seams may be on the inside of the sleeve. Then the sleeve has had to be pulled by brute I force over the glue-coated exterior of the core, because,

in order for the sleeve to fit tightly on the core, the inside diameter of the sleeve is made slightly less than the outside diameter of the core so that the sleeve may resiliently and snugly engage the external peripheral surface of the core. A skin-tight fit of the sleeve onto the core helps hold the sleeve on the core; and it is not necessary to rely on the glue alone for this purpose.

The pulling of the sleeve over the core as heretofore practiced has been a difficult and tiring operation. Moreover, in pulling the sleeve onto the core there is a tendency to smear the glue unevenly on the exterior of the core.

Among the objects of this invention is to provide a simple, economic, and expeditious method of making a rotatable fur-covered brush of the type described.

Another object of this invention is to minimize the effort and the number of operations involved in making such a brush.

Other objects of the invention will be apparent hereinafter from the specification and from the recital of the appended claims, particularly when read in conjunction with the accompanying drawing.

In the drawing:

FIG. 1 is a side elevational view of a core holding fixture constructed according to one embodiment of this invention for use in covering a core with a fur sleeve according to the novel process of the present invention, the fixture being shown with the core holder itself in horizontal position;

FIG. 2 is a side elevational view of a turning device adapted to be employed in the practice of my novel method in turning a fur sleeve outside in and drawing it over the core of a brush;

FIG. 3 is a side elevational view showing the core holder and core pivoted on the fixture into a vertical position, and illustrating the manner in which one end of the turning fixture and fur sleeve are adapted to be inserted into one end of the core, the fur sleeve being shown in phantom by broken lines on the turning fixture prior to its being pulled outside out onto the core, and being shown in solid lines assembled on the core at the completion of the assembly operation; and

"ice

FIG. 4 is a cross section taken along the line 44 of FIG. 3 and looking in the direction of the arrows.

Referring now to the drawing by numerals of reference, 11 designates generally the core holding fixture. This fixture comprises a block 12 which is pivotally mounted by means of a shaft or stud 15 between two base members 13 that are bolted or otherwise secured to the operators bench or table 14. Secured to one end of block 12 is a bearing plate 16. Bearing plate 16 projects to one side of base 12 and has a shaft 17 extending transversely therethrough and journaled therein. Shaft 17 has stop members 18 and 19 secured to it at opposite faces of plate 16. A knurled knob 20, which may be integral with stop member 19, is secured to one end of shaft 17 for rotation of shaft 17. I

Secured to the other end of shaft 17 coaxially thereof by means of a hub 21 is one end of a cylindrical core holder 22. Between hub 21 and core holder 22 is a circumferential flange 23 which extends slightly radially outwardly beyond the outer periphery of core holder 22. Mounted in a conventional manner in recesses in the core holder 22 to normally project outwardly beyond the periphery thereof are a plurality of spring-pressed ball detents 25. Preferably at least three of such detents 25 are disposed adjacent each end of core holder 22 in equiangularly spaced positions about the axis thereof. Each detent 25 is constantly urged radially outwardly by a 7 spring 24. The outer ends of the recesses are constricted to hold the balls in the recesses.

To use the fixture in assembling a fur-covered brush, the cylindrical core 35 of cardboard or the like for the brush is positioned over core holder 22 coaxially thereof so that the spring loaded detents 25 frictionally engage the inner surface of the core 35 and retain it snugly on core holder 22. After the core 35 is mounted on the core holder, the unit 11 is pivoted into its horizontal position illustrated in FIG. 1; and the operator rotates knob 20 and thus core 35, while at the same time applying glue around the periphery and along the length of the core by means of a brush or the like. The flange or collar 23 serves to protect shaft 17 from having glue applied to it, and to prevent build up of the glue. After the core is thoroughly covered with glue, the unit 11 is pivoted about shaft 15 into its vertical position as shown in FIG. 3.

A metallic turning fixture 41 (FIG. 2) is then fitted into the upper end of core 35. This turning fixture has an inverted conical lower end 43, a truncated conical upper or body portion 45, and a cylindrical collar portion 44 which connects the two conical portions 43 and 45. The portion 45 has an outside diameter at its base slightly larger than the diameter of the cylindrical portion 44 so that a circumferential shoulder 46 is formed at the juncture of body 45 and portion 44. The outside diameter of the cylindrical portion 44 is slightly less than the inside diameter of core 35, and the outside diameter of the portion 45 at its base, may be approximately equal to or slightly greater than the outside diameter of core 35.

The fur sleeve 51, which is to be secured to the core 35, is slipped over the upper end of fixture 41, while the sleeve is inside out, and pulled downwardly thereon until a portion 52 of the sleeve extends slightly below shoulder 46 on the fixture. The fur sleeve will go on the fixture easily because the upper end of the truncated conical portion 45 of the fixture is of considerably less diameter than the internal diameter of the fur sleeve. Portion 52 of the sleeve is tucked radially inwardly toward the cylindrical portion 44 of the fixture 41, so that when the fixture is inserted into the upper, open end of core 35, the tucked-in portion 52 of the fur sleeve will be gripped between the fixture shoulder 46 and the upper end of core 35 as shown in FIG. 3.

At this stageof'the process the fur sleeve 51, asshown 4 1,, and its skin sider and sefams, (only one of' which is illustrated in FIG. 3),at the outside; 'Theoperator then grasps the ,upperend of sleeve 51 and pulls it sown- Wardly fromits upper end. over the core 35 until sleeve 51 has assumed the position ,shownin solid lines in FIG.

3, thereby turning the sleeve outside out and'causing the skin side of the sleeve to engage against the gluecovered outside surface of the core. Usually sleeve 51 is made of-aQlength slightly greater than therlen g th of core 35 in order to provide a portion for gripping and.

toprovide the-,tucked-in portion 52 which is held beg tween the fixtureAl and :core 35 during the reversal of the sleeve, As-the operator-pulls the sleeve 51 downwardly,=flangej23 preventsv the core from lower end of core holder 22. g

After the sleeve is on the core 35,- the fixture 41 is removed .from the core, the covered core-is removed from core holder 22, and' the ends-are trimmedfrom the fur sleeves 6 i I It'willthus :be seenthat applicant has devised appa ratus-and alprocess which considerably minimizes the. effort which has heretofore had to be expended in assembling afur sleeve upon a core to make a brush of the typedescribed. By. utilizing fixture 41, the opera tor is provided with a readymeans 'for guiding a sleeve onto a core-35,- and need no longer struggle to pull'o'ne, end of the fur sleeve over. one end of core '35 as he begins to. assemble the sleeve onto'the core.

ally, the use of fixture 41 eliminates the need for turn- Addition-' ing a sleeve-outsidesout subsequent to its pelts being sewn togetheninorder to place the fur side out before trying to pull the sleeve onto the core, -as haslbeen required in the past.

ing of the sleeve ontothe core from the turning fixeore exterior. the fur sleeve which are to be assembledonto the'cores,

sliding off the Instead, in applicantsr process the fur sleeves are turned outside out simultaneously'with the assembly of the-sleeve onto the core; andthe, roll- V ture prevents undesirable smearing of the glue on the 4 Furthermore, the presence of seams in no longer constitute as big a problem as they did when operators practiced the old process. The plurality of seams tended to increase the eifortrequired and the difficulty encountered in attempting to draw a sleeve over the end of the corein the way the parts wereheret-o- I fore assembledn However, with the presentyinvention,

the existence ;.of seams inthe fur sleeve presents no partieular problem inv assembling the sleeve ontolthe' core,

since applicants turning fixture 41 substantially elirni nates anydifliculty in initiating the; slipping of the sleeve onto the core. While the invention has been described in connection with a specificembodiment thereof, it will be understood that it is capablefof' further modification, andthis ap-' plicationi is intended to cover any; variations,fuses, or adaptations of the inventions following, in general, the

principles of the invention and including such departures from the present disclosure as come withinknown or customary practice in the -,art to, which the; invention pertains and as may be applied to the essential features hereinbeforeset forth and as'fall within the scopeof the invention'or the limits of the appended claims.

Having thusdescribed my invention, what I claim is:

l. The method of making a'fur covered brush' by se-v curing to a tubular core, a fursleeve having .aninside diameter slightly less than theoutside diameter of said, core, comprising (a) rotating-thecore about its axis, I ([2) while simultaneously applyingglue to the exte- V rior of said core, i

(c) mounting said core in a stationary position with its axis disposed vertically-,;-

(til-inserting the 'bottomof, a fixture intothe upper end of said vertically disposed tubular tcore,

(e)'inserting a fur sleeve over said fixture with the fur side ofsaidsleeve inside, 1

(f) causing the lower end of said sleeve to be gripped in a stationary position between thebottom of said fixtureandthetop of said core,

(g4) pulling on theupper end' of said sleeve to turn said sleeveinside' out and to simultaneously draw the sleeve over said core, so that said upper end of said sleevepas'ses over sa d gripped sleeve end and ontosaidcore, and

; (I thereafter removing said fixture.

I 2.'The method of making a fur covered brush comprising" v p (a), rotating a tubular core about its axis (b) while simultaneously applying glue to the periphery ofsaidcore, r (c) mounting said core with itsaxis disposed verti- (d) inserting the bottom of a fixture into the upper end of said vertically disposed tubular core, (e) placing a fur sleeve havingyan'innerdiameter slightly: less than the external diameter of said core and having an axialflen'gth slightly greater than the axial length of said -core,, over said fixture ,sub- 7 stantially'coaxially of said core with the fur side of 'said sleeve facing inwardly,-

(f) radially expandingsaid sleeve adjacent itslower end, 7

(g) tucking: theportion of, said sleeve immediately References Citedby the Examiner UNITED STATES, PATENTS 201,096 3/78 Cowles 29-234 216,2 3 6/79 Ewing"; 29 234 438,836 10/90 B'otsford 29-234X 2,006,364 7/35 Morse fl 29-430 2,202,812; 6/40 Davis ;15- 256.52 2,480,173 81/49, Wilson 29 234 2,621,507 12/52" Pharris et al. 300-21 x 2,651,83 9/53 Walkenius is--. 29-234 X 1 2,721,601,v 10/55 Spencer 156-165 "2,741,267; 4/56- McKinley '29- 23s 2,745,778 5/56 Garten 1s6 -+165 2,857,610 10/58 Rympalski 1s 230 X GRANVILLE Y.,CUSTER, JR., Primary Examiner. CHARLES A. WILLMUTH, .Examinen 

1. THE METHOD OF MAKING A FUR COVERED BRUSH BY SECURING TO A TUBULAR CORE, A FUR SLEEVE HAVING AN INSIDE DIAMETER SLIGHTLY LESS THAN THE OUTSIDE DIAMETER OF SAID CORE, COMPRISING (A) ROTATING THE CORE ABOUT ITS AXIS (B) WHILE SIMULTANEOUSLY APPLYING GLUE TO THE EXTERIOR OF SAID CORE, (C) MOUNTING SAID CORE IN A STATIONARY POSITION WITH ITS AXIS DISPOSED VERTICALLY, (D) INSERTING THE BOTTOM OF A FIXTURE INTO THE UPPER END OF SAID VERTICALLY DISPOSED TUBULAR CORE, (E) INSERTING A FUR SLEEVE OVER SAID FIXTURE WITH THE FUR SIDE OF SAID SLEEVE INSIDE, (F) CAUSING THE LOWER END OF SAID SLEEVE TO BE GRIPPED IN A STATIONARY POSITION BETWEEN THE BOTTOM OF SAID FIXTURE AND THE TOP OF SAID CORE, (G) PULLING ON THE UPPER END OF SAID SLEEVE TO TURN SAID SLEEVE INSIDE OUT AND TO SIMULTANEOUSLY DRAW THE SLEEVE OVER SAID CORE, SO THAT SAID UPPER END OF SAID SLEEVE PASSES OVER SAID GRIPPED SLEEVE END AND ONTO SAID CORE, AND (H) THEREAFTER REMOVING SAID FIXTURE. 